Emissions Calculators

The Diesel Emissions Quantifier (Quantifier) is a tool to help fleet owners, school districts, municipalities, contractors, port authorities, and others estimate cost effectiveness and environmental impact of emission reduction technologies that have been added to vehicles and equipment. Estimates are made using specific information about a fleet, such as miles driven, fuel mileage, and others. This site will also help you to prepare and submit your diesel emissions data to EPA.

EPA's AirData: Access
to Air Pollution Data.
The AirData Web site gives you access to air pollution data for
the
entire United States. Want to know the highest ozone level
measured in your state last year? Ever wonder where air pollution
monitoring sites are located? Are there sources of air pollution
in your town? You can find out here! AirData
produces reports and maps of air pollution data based on criteria
that you specify.